LB Health Check
Users can create LB health checks through the Samsung Cloud Platform Console and use them for LB server groups.
Create LB health check
To create an LB health check, follow these steps.
- Click the All Services > Networking > Load Balancer menu. You will be taken to the Load Balancer’s Service Home page.
- On the Service Home page, click the LB Health Check menu. You will be taken to the LB Health Check List page.
- On the LB Health Check List page, click the Create LB Health Check button. You will be directed to the Create LB Health Check page.
- On the LB Health Check Creation page, enter the information required to create the service and select detailed options.
- In the Service Information Input area, enter or select the required information.
Category RequiredDetailed description LB health check name Required LB health check resource name - Enter using English uppercase and lowercase letters, numbers, and special characters (
-_) with a length of 3 to 63 characters
- LB health check name must be unique within the Account
VPC name Required Select the VPC to create the LB health check - Select the VPC where the LB server group that will use the LB health check is created
Service Subnet name Required Select the VPC Subnet to create the LB health check - Select the Subnet where the LB server group that will use the LB health check is created
Health check method > Protocol Required Health Check Protocol - Select the protocol to use for member health checks among TCP, HTTP
Health check method > Health check port Required Health check port - Enter a value between 1 and 65,534 to use as the member health check port
Health check method > interval Required Health check interval - Default is 5 seconds, input allowed between 1 and 180 seconds
Health check method > waiting time Required Health check response wait time - Default 5 seconds, can be set between 1 and 180 seconds
- Cannot be set to a value larger than the interval
Health check method > detection count Required Number of times to evaluate health check status - Default value 3 times, input allowed between 1 and 10
Health check method > HTTP method Required Set HTTP request method (HTTP protocol usage setting) - Select GET or POST
Health check method > URL monitor Required Enter health check URL path (set when using HTTP protocol) - Enter using English letters, numbers, and special characters (
/.-_?&=) within 50 characters
Health check method > Response code Required Enter the HTTP response codes to receive from the server (HTTP protocol when used) - Enter response codes in the 200 ~ 500 range
Health check method > request string Required Health check request string input (HTTP protocol POST method setting) - Enter the content to include in the Request Body using English letters, numbers, and special characters (
/.-_?&=) within 255 bytes
Table. LB health check service information input items - Enter using English uppercase and lowercase letters, numbers, and special characters (
- In the Additional Information Input area, enter or select the required information.
Category Required statusDetailed description description Select Enter resource description tag Select Add tags - Up to 50 tags can be added per resource
Table. LB server group additional information input fields
- In the Service Information Input area, enter or select the required information.
- Summary Check the service information and estimated charges created in the panel, and click the Create button.
- When creation is complete, check the created resources on the LB Health Check List page.
Add the following rule to the Security Group of the server added as a member for member health checks in the Load Balancer.
- (Direction) Inbound rule, (Target address) Load Balancer’s health check IP, (Protocol) health check protocol, (Allowed port) health check port
- It is recommended to set the health check port the same as the member port.
- If the health check port and the member port differ, the health check is performed using the member port.
Configure the LB health check to a value that members added to the LB server group can respond to.
- Since the Load Balancer determines member status based on health check responses, the LB health check results may differ from the actual service status.
View detailed LB health check information
In the LB Health Check menu, you can view and edit the resource list and detailed information. The LB Health Check Details page consists of Details, Connected Resources, Tags, Activity Log tabs.
To view detailed LB health check information, follow these steps.
Click the All Services > Networking > Load Balancer menu. You will be taken to the Load Balancer’s Service Home page.
On the Service Home page, click the LB Health Check menu. You will be taken to the LB Health Check List page.
- You can modify the column visibility by clicking the Settings button at the top right of the table.
Category Display optionDetailed description LB health check name Basic LB health check resource name Service Subnet ID Basic VPC Subnet name where the LB health check was created Number of LB server groups Basic Number of LB server groups using LB health check type Basic LB Health Check Type Protocol Basic LB health check protocol Creation date and time Basic LB health check creation timestamp status Basic LB health check resource status Table. LB health check list items
- You can modify the column visibility by clicking the Settings button at the top right of the table.
On the LB Health Check List page, click the resource to view detailed information. You will be taken to the LB Health Check Details page.
- LB Health Check Details At the top of the page, status information and descriptions of additional features are displayed.
Category Detailed description status LB health check resource status - Active: The service is active and functioning normally
- Deleting: Processing service termination request
- Creating: Processing service creation request
- Error: Unable to determine current status due to an internal error
- If this status persists, please contact the Support Center
- Editing: Processing service modification request
Delete LB health check Delete LB health check resource Table. LB health check status information and additional feature items
- LB Health Check Details At the top of the page, status information and descriptions of additional features are displayed.
Detailed Information
Details tab allows you to view the resource’s detailed information from the LB health check list, and edit the information if needed.
| Category | Detailed description |
|---|---|
| Service | Service name |
| Resource Type | Resource Type |
| SRN | Unique resource ID in Samsung Cloud Platform |
| Resource name | Resource Name |
| Resource ID | Unique resource ID in the service |
| constructor | User requesting service creation |
| Creation date and time | Service creation date and time |
| Editor | Service modification request user |
| Modification date and time | Service modification date and time |
| LB health check name | LB health check name |
| type | LB health check type |
| VPC name | VPC to use for LB health check
|
| Service Subnet name | VPC Subnet for LB health checks
|
| Health check method | LB health check method configuration information
|
| description | Additional information about LB health check
|
Connected resource
In the Connected Resources tab, you can view detailed information about the LB server groups associated with the LB Health Check.
| Category | Detailed description |
|---|---|
| LB server group name | LB server group resource name
|
| Protocol | LB health check protocol |
| Load Balancer name | Load Balancer resource name linked to the LB server group |
| Number of members | Number of members added to the LB server group |
| Creation date and time | LB server group creation timestamp |
| status | LB server group resource status
|
tag
LB health check list page lets you view the tag information of the selected resource and add, modify, or delete it.
| Category | Detailed description |
|---|---|
| Tag list | Tag list
|
Job History
Work History tab allows you to view the operation history of the selected resource.
| Category | Detailed description |
|---|---|
| Work history | Task execution details |
| Operation Date/Time | Execution date and time |
| Resource Type | Resource Type |
| Resource Name | LB health check name |
| Work result | Task execution result (success/failure) |
| Operator Information | User information of the performed operation |
Modify LB health check method
LB Health Check Details page allows you to modify the health check method.
To modify the LB health check method, follow these steps.
- Click the All Services > Networking > Load Balancer menu. You will be taken to the Load Balancer’s Service Home page.
- On the Service Home page, click the LB Health Check menu. You will be taken to the LB Health Check List page.
- LB Health Check List page, click the resource you want to edit details for. You will be taken to the LB Health Check Details page.
- On the LB Health Check Details page, click the Edit icon of the Health Check Method. You will be taken to the Edit Health Check Method popup.
- Modify health check method After editing the required information in the popup window, click the Confirm button.
Cancel LB health check
You can cancel the LB health check service you are not using.
- default type LB health check resource cannot be deleted.
- LB health check resources used by the LB server group cannot be deleted.
To disable the LB health check, follow these steps.
- Click the All Services > Networking > Load Balancer menu. You will be taken to the Load Balancer’s Service Home page.
- On the Service Home page, click the LB Health Check menu. You will be taken to the LB Health Check List page.
- Click the resource to terminate from the LB health check list. You will be taken to the LB health check details page.
- On the LB Health Check Details page, click the Delete LB Health Check button.
- Once the termination is complete, check the resource termination status in the LB health check list.